linux-kernel - Re: [lm-sensors] [PATCH 1/2 V3] applesmc: Use PnP rather than hardcoding resources and devices

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Date:	Mon, 20 Dec 2010 21:44:34 +0800
From:	Mikael Ström <mikael@...amiq.com>
To:	Henrik Rydberg <rydberg@...omail.se>
Cc:	Julien BLACHE <jb@...ache.org>, Jean Delvare <khali@...ux-fr.org>,
	Guenter Roeck <guenter.roeck@...csson.com>,
	"lm-sensors@...sensors.org" <lm-sensors@...sensors.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Matthew Garrett <mjg@...hat.com>
Subject: Re: [lm-sensors] [PATCH 1/2 V3] applesmc: Use PnP rather than
 hardcoding resources and devices

Hi,

I know nothing about the background to the mail below, but if it's of
any help, macfanctld uses the following hardwired paths,

reading:

/sys/devices/platform/applesmc.768/temp<n>_input

and writing:

/sys/devices/platform/applesmc.768/fan1_min
/sys/devices/platform/applesmc.768/fan2_min
/sys/devices/platform/applesmc.768/fan1_manual
/sys/devices/platform/applesmc.768/fan2_manual

If any of those are to be broken, please advice in advance so i can
update the source before you break it, avoiding that the users fry their
MacBooks.

Thanks,
Mike

-- 
Mikael Ström <mikael@...amiq.com>

On Sat, 2010-12-18 at 12:57 +0100, Henrik Rydberg wrote:
> On Sat, Dec 18, 2010 at 12:29:52PM +0100, Julien BLACHE wrote:
> > "Henrik Rydberg" <rydberg@...omail.se> wrote:
> > 
> > Hi,
> > 
> > >> Which applications? libsensors-based applications definitely don't
> > >> hard-wire anything.
> > >
> > > The ones I am thinking of are pommed and macfanctld, there are
> > > probably others. The sysfs nodes have been around a while, so it is
> > > not really surprising. If there is a policy saying it is ok to break
> > > userspace in this case, that's fine.
> > 
> > I've just changed pommed to probe for applesmc through /sys/class/hwmon,
> > so you can go ahead and break it as far as I'm concerned :)
> 
> Great, thanks Julien. And macfanctld should not be a problem either (ccing the author).
> 
> Henrik
> 

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